三彌勒經疏 1.234

1.234

經曰「於山頂上」以下，第三為開神骨。《大成佛經》曰「到崛山已，登狼迹山頂，舉足大指踐於山根，是時大地十八相動。以手擗山，如輪王開大城門。時梵王持天香油灌迦葉頂，擊大楗槌，吹大法蠡。迦葉即從滅盡定覺，整衣服，長跪合掌，持本師僧伽梨奉與彌勒，而作是言：『大師釋迦牟尼佛臨涅槃時囑我衣，今奉世尊。』」

From the sūtra passage stating, "On top of the mountain," onward is the third, opening the divine relics for them. The Great Attainment of Buddhahood Sūtra says: "Having arrived at Mount Gṛdhrakūṭa, he climbed to the summit of Mount Kukkuṭapāda, raised his great toe, and trod upon the base of the mountain; at that time the great earth shook in eighteen ways. With his hand he split open the mountain, like a wheel-turning king opening the great gate of a city. Then the Brahma King took heavenly fragrant oil and poured it upon Kāśyapa's crown, struck the great gaṇḍī, and blew the great Dharma conch. Kāśyapa immediately awoke from the cessation absorption, straightened his robes, knelt on both knees with palms joined, held up his original teacher's saṃghāṭī and offered it to Maitreya, saying: 'When the Great Master Śākyamuni Buddha was approaching nirvāṇa, he entrusted the robe to me; I now offer it to the World-Honoured One.'"